{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\toprule
            &\multicolumn{1}{c}{Metal manu (69)}&\multicolumn{1}{c}{Inorganic chem (52)}&\multicolumn{1}{c}{Organic chem (51)}&\multicolumn{1}{c}{Machinery (71)}&\multicolumn{1}{c}{Paper (64)}&\multicolumn{1}{c}{Metal ores (28)}\\\cmidrule(lr){2-2}\cmidrule(lr){3-3}\cmidrule(lr){4-4}\cmidrule(lr){5-5}\cmidrule(lr){6-6}\cmidrule(lr){7-7}
            &\multicolumn{1}{c}{(1)}   &\multicolumn{1}{c}{(2)}   &\multicolumn{1}{c}{(3)}   &\multicolumn{1}{c}{(4)}   &\multicolumn{1}{c}{(5)}   &\multicolumn{1}{c}{(6)}   \\
\midrule
{}          &      0.0400   &     -0.0406   &     -0.0619** &      0.0626***&     0.00443   &     -0.0593** \\
            &    [0.0303]   &    [0.0233]   &    [0.0273]   &    [0.0203]   &    [0.0224]   &    [0.0285]   \\
\midrule
N           &         122   &         122   &         122   &         122   &         122   &         122   \\
\bottomrule
\end{tabular}
}
